Steam-trap for radiators.



P. L. WATSON. STEAM TRAP FOR RADIATORS. APPLICATION 1 1mm APR.1B,19OB.

Patented 0011211908.

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V lm themes M UNITED STATES FRANK LEVI WATSON, O1 LYNOHBUItG, VIRGINIA.

STEAM-TRAP 1:011 RADIATORS.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Applidation filed April 18, 1908. Serial No. 127,847.

To all whom 'it may concern:

Be it known that I, FRAN K Levi VVATSON, a citizen of the United States, residing at Lynchbur in the county ofatampbell and State of irginia, have invented a new and useful Steam-Trap for Radiators, of which the following is a specification.

The invention relates to improvements in steam traps for radiators.

The Qb ect of the present invention is to imcprove the construction of steam traps for 1a iators, and to provide a sim le, inexpensive and efficient device, adapted to be readily applied to radiators Without necessitating any alteration in the construction of the same or the return pipe, and capable of preventing steam from entering the return pipe and interfering with the operation of the system or causing water hammer.

A further object of the invention is to provide a steam trap of this character capable of forming a suflicient water seal for excluding steam from the return pipe, and adapted to permit the escape of air.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended; it eing understood that various cianges in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departin from the spirit or sacrificing any of the a vantages of the invention.

In the drawing :Figure 1 is a vertical sectional view of a' steam trap for radiators, constructed in accordance with this invention and shown applied to a ortion of a radiator andthe return pi e tl iereof. Fig. 2 is a ers ective view 0 the steam trap detached ig. 3 is a perspective view of the cylindrical trap casmg. Fig. 4 is an end' elevation of the same.

Like numerals of reference designate corresponding parts in all the figures of the drawing. q

1 designates a bushm of the usual con struction, screwed into t e threaded opening 2 of aradiator 3 and provided with a reducing openin 4, interiorly threaded for the reception 0 the threaded end of a return pipe 5. The bushin 1s provlded at its 1nne'r face with a cham er 6 in which 1s fitted an open end 7 of a cylindrical trap casing 8. The outer end of the cylindrical trap cas ng bushing having a reducing o n'in [is open and is secured Within the inner chamber of the bushing in any suitable manner. The trap casing is provided with an inner end wall 9, but it is divided by a transversely disposed segmental partition 10 to form an inner water seal compartment 11. The artition 10, which may be varied in form, is preferably provided with a peri'pheral flange 12, extending outwardly toward the open end of the casing and suitably secured to the same. The upper edge 13 of the transverse partition is spaced from the top of the casing to provide a passage for the Water, and the latter enters the casing through perforations 14 and flows out over the upper edge of the transverse partition; The apertures 14, which form a water inlet, are arranged at the bottom of the chamber in the lower portion of the end wall 9, but the water inlet may be arranged at any other desired portion of the bottom of the inner compartment 11, as will be readily understood. The end wall 9 is provided above the plane of the upper edge of the partition 10 with a small vent aperture 15 for the escape of air. The perforation is not of suflicient size to permit the escape of steam into the return pipe in a sutficient quantity to affect the operation of the system, or to cause water hammer in the pipes. The steam trap is adapted to be ap plied to radiators with the same facility as the ordinary bushin and the water contained within the ra iator rises in the compartment 11 of the trap casing and forms an etiicient water seal and positively cuts off the escape of steam through the water inlet of the casing.

Havi 1 thus fully described my invention, what I c aim as new and desire to secure by Letters Patent, is l 1. A steam trap for radia-t rs including a and proa c amber, a wall and vided at its inner face wit trap casing having an inner end provided with an open outer end fitted with- 1n the chamber of the bushing and a transverse partition arranged within the trap casin and extending upward from the bot tom t ereof to form an inner compartment, the up er edge of the partition being spaced from t e top of'the tra casing and the latter being provided at t e lower ortion of the compartment with a water in et.

2. A steam trap for radiators including a bushing having a reducuig opening and pro- \ided with a eylindrical chamber, a cylindrical trap'easingprovided with an inner end wall and havin' an '0 en outer end fitted within. the -cylindrica chamber of the bushing, and a substantially segmental tran sverse partition arranged within the trap was ing and extending lipwardifrom the bottom to form an inner compartment and s acedfrom the top of the casing, thev latter eing provided at the lower portionof the inner end wall with perforations to form a water inlet and having an air vient perforation located above the upper edge of the partition.

The combination with a bushing having a reducing opening, of a cylindrical trap easlng'having an inner end wall and provided with anopen outer end secured to the begging, and a transverse partition arranged inner compartment, said trap casing being provided at the lower portion of the compartment with a water inlet and having an air vent at the upper portion of the said compartment. 7

In testimony, that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

FRANK LEVI WATSON.

W'itnesses W. H. LIGGAN, K. OTEY, Jr. 

